agentx.sale/x402/protocol-lint

A2A / MCP protocol card lint: validate agent.json / server-card.json and return drop-in patched JSON fixes

Endpoint	`https://agentx.sale/x402/protocol-lint`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x9702dDF83ECB770f87FF6AF04156Be7241a3fe83
method	GET
last updated	2026-11-11T13:08:37.311Z

Use it

Call it (an x402 client pays automatically)

curl -i https://agentx.sale/x402/protocol-lint
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-8e57d78dac9e1cd7

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}